Install multiple versions of PHP on Linux

You can install all versions of php either from source or install the default version using yum installer.

My server has php5.3 already installed and I am going to install PHP5.6 from source.
Prerequisites
Create required folders

mkdir -p /usr/local/php56
mkdir -p /etc/php56
mkdir -p /etc/php56/php.d

Download php5.6

wget http://de1.php.net/distributions/php-5.6.19.tar.gz

Compile php

./configure –prefix=/usr/local/php56 –with-config-file-path=/etc/php56 –with-config-file-scan-dir=/etc/php56/php.d –with-libdir=lib64 –with-mysql –with-mysqli  –enable-mbstring –disable-debug –disable-rpath –with-bz2 –with-curl –with-gettext –with-iconv –with-openssl –with-gd –with-mcrypt –with-pcre-regex –with-zlib –enable-soap –enable-sockets –enable-zip –enable-bcmath –enable-calendar –enable-exif –enable-gd-native-ttf –with-freetype-dir –with-jpeg-dir –with-png-dir

Notes: You may see errors that few packages were not installed. In most case you will need to install devel packages.

eg: yum install libjpeg-turbo-devel
yum install libxml2-dev
yum install bzip2-devel
You need to compile it again after installing the packages.
Copy php.ini file

cp php.ini-production /usr/local/php56/php.ini

In order to enable multiple PHP versions, we need to install suphp on the server. I assume the server has suphp configured already. Make the following changes

edit the file /etc/suphp.conf and add the line

application/x-httpd-php56=”php:/usr/local/php56/bin/php-cgi”

Edit the file /etc/httpd/conf.d/php.conf and add following lines

suPHP_AddHandler application/x-httpd-php56

Enable PHP5.6 for a folder/site
create an .htaccess file and add following line

AddHandler application/x-httpd-php56 .php

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